<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <style>
      * {
        margin: 0;
        padding: 0;
        list-style: none;
      }
      #app {
        padding: 5px;
        width: 300px;
        border: 3px solid rgb(155, 146, 146);
        margin: 30px auto;
        background-color: blanchedalmond;
      }
      h3 {
        text-align: center;
      }
      .jl {
        text-align: center;
      }
      ul {
        margin: 0 auto;
        display: block;
        width: 200px;
      }
    </style>
    <div id="app">
      <h3>记事本</h3>
      <div class="jl">
        <input type="text" />
        <button>提交</button>
      </div>

      <ul>
        <li>吃饭</li>
        <li>睡觉</li>
        <li>打豆豆</li>
      </ul>
    </div>

    <div></div>
    <script src="./vue.js"></script>
    <script></script>
  </body>
</html>
